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Radio Electronics

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Radio Electronics


Published 1956
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1956 public domain textbook in the McGraw-Hill electrical and electronic engineering series.
"PREFACE
'Radio Electronics' and 'Electronic Engineering' have been written as companion volumes, though written as independent textbooks. Together they represent a revision and extension of the author's 'Electron-tube Circuits.' It has been necessary to include a certain amount of material that is common to both books in order to ensure completeness and continuity of text material. Moreover, the common material is the same in each book, in the interests of economy of production. However, the amount of duplicated material has been kept to a minimum, consistent with the desire to have these books independent, and also to provide a complete and continuous development.
While one of the main objectives of this book, as its title would indicate, is a study of the important electronic aspects of radio, a much broader scope is contemplated. That is, more than just an analysis of the elements of radio systems is undertaken. For this reason general system block diagrams are discussed before any analysis is undertaken. Many of the important aspects of communication-systems engineering are also discussed in order to bring into focus some of the major factors that must be considered in system synthesis. This accounts for the inclusion of such topics as noise, signal/noise ratios, gain-bandwidth products, and an introduction to information theory, with consideration of the rate of transmission of information. Some of the systems discussed superficially require specialized techniques in their operation, and a discussion of these is deemed to be outside of the scope of this book. Therefore only very limited discussion will be found of pulse-modulation systems.
Wherever possible, the analysis proceeds in two stages. An effort is made first to present an explanation of the operation of the circuits from a physical point of view. This is followed by fairly rigorous mathematical analyses. Such mathematical analyses have a threefold objective: (1) To illustrate the techniques of analysis. Often, in fact, alternative developments have been included to demonstrate different methods of analysis. (2) To deduce a solution which yields a description of the operation of the circuit. (3) To examine the effects of the various parameters on the operation of the circuit.
In all analyses considerable care has been taken to include the requisite reference conditions for potential polarities, current directions, and transformer-winding sense. These are an essential part of any circuit diagram, and without them the ultimate choice of a positive or negative sign would require a major decision.
Much of the material in this book has been used in two courses in radio at Syracuse University. The introductory chapters are essential in the first course, as this provides the students with their first introduction to electronic devices and their circuit applications. A more theoretical course in physical electronics follows rather than precedes this course.
The author wishes to acknowledge the helpful discussions with many of his former colleagues at Syracuse University. He is particularly indebted to Dr. Herbert Hellerman for his many helpful suggestions and for his assistance in proofreading the entire text.
Samuel Seely

CONTENTS
Preface v
Chapter 1. Introduction to Communication Systems 1
2. Characteristics of Electron Tubes 15
3. Rectifiers and Filters 53
4. Vacuum Triodes as Circuit Elements 83
5. Basic Amplifier Principles 100
6. Untuned Potential Amplifiers 119
7. Special Amplifier Considerations 143
8. Untuned Power Amplifiers 187
9. Tuned Potential Amplifiers 212
10. Tuned Power Amplifiers 241
11. Oscillators 283
12. Amplitude Modulation 320
13. Demodulation 348
14. Frequency Modulation and Detection 377
15. Information Theory 429
Appendix
A. Notes on General Network Analysis 443
B. Plate Characteristics of Vacuum Tubes 454
C. Characteristics of Transmitting Tubes 471
D. Table of Bessel Functions of the First Kind 473
Index 475
Digitized by www.tubebooks.org


Year 1956
Pages 493
Language English
Collection folkscanomy_electronics; folkscanomy; additional_collections

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